will you be doing Express walk off, meaning that you can move all your luggage off the ship with no assistance?
if you will be putting your luggage out the night before, are you in a suite so it will be offloaded first?
do you have Global Entry?
Do you have any airline status that would help you get through lanes quicker? Will you be flying first class or coach? And do you have TSA pre-check?
What is your plan B if you miss the flight? How much will it cost you to fly standby later in the day? How many flights are there later in the day that you could catch? What is the load on those flights at this time because if they are already sold out or nearly so, you won’t have much of a chance of getting a seat.
how well do you handle travel stress? Will this plan cause you more stress than you can handle?
These are just a few of the questions you need to consider before you book that flight